WO2014000337A1 - 机器类型通信用户设备的通信方法及系统 - Google Patents

机器类型通信用户设备的通信方法及系统 Download PDF

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Publication number
WO2014000337A1
WO2014000337A1 PCT/CN2012/080567 CN2012080567W WO2014000337A1 WO 2014000337 A1 WO2014000337 A1 WO 2014000337A1 CN 2012080567 W CN2012080567 W CN 2012080567W WO 2014000337 A1 WO2014000337 A1 WO 2014000337A1
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WO
WIPO (PCT)
Prior art keywords
group
mtc
information
user equipment
mtc user
Prior art date
Application number
PCT/CN2012/080567
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English (en)
French (fr)
Inventor
许辉
Original Assignee
中兴通讯股份有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 中兴通讯股份有限公司 filed Critical 中兴通讯股份有限公司
Priority to US14/411,343 priority Critical patent/US9467820B2/en
Priority to EP12880009.1A priority patent/EP2866477B1/en
Publication of WO2014000337A1 publication Critical patent/WO2014000337A1/zh

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/06—Selective distribution of broadcast services, e.g. multimedia broadcast multicast service [MBMS]; Services to user groups; One-way selective calling services
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/06—Selective distribution of broadcast services, e.g. multimedia broadcast multicast service [MBMS]; Services to user groups; One-way selective calling services
    • H04W4/08—User group management
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/70—Services for machine-to-machine communication [M2M] or machine type communication [MTC]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W48/00—Access restriction; Network selection; Access point selection
    • H04W48/08—Access restriction or access information delivery, e.g. discovery data delivery
    • H04W48/12—Access restriction or access information delivery, e.g. discovery data delivery using downlink control channel
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W68/00—User notification, e.g. alerting and paging, for incoming communication, change of service or the like
    • H04W68/02—Arrangements for increasing efficiency of notification or paging channel
    • H04W68/025—Indirect paging
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/30—Resource management for broadcast services
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/40—Connection management for selective distribution or broadcast
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/08—Access point devices

Definitions

  • the present invention relates to the field of communications, and in particular to a communication method and system for a machine type communication user equipment. Background technique
  • M2M Machine to Machine
  • M2M business appeared on the market around 2002, and it developed rapidly in the following years, becoming the focus of many communication equipment vendors and telecom operators. At present, the number of machines in the world is much larger than that of people, so it is possible to foresee the good market prospects of M2M technology.
  • Research on M2M communication application scenarios shows that providing M2M communication on mobile networks has potential market prospects. However, the M2M service puts forward many new requirements for the system.
  • the existing mobile communication networks are mainly designed for human-to-human communication, while the communication between machines and machines, people and machines is insufficiently optimized.
  • how operators can provide M2M communication services at low cost is also the key to the successful deployment of M2M communication. Based on the above situation, it is necessary to study the solution of mobile network supporting M2M communication. The solution should maximize the reuse of the existing network, reduce the impact of a large number of M2M communication on the network, and the complexity of operation and maintenance.
  • MTC Machine Type Communication
  • the EPS includes a radio access network (such as the UMTS Universal Terrestrial Radio Access Network (UTRAN) and the Evolved UTRAN (Evolved UTRAN).
  • E-UTRAN GSM/EDGE Radio Access Network
  • GE AN GSM/EDGE Radio Access Network
  • core network such as Evolved Packet Core (EPC) a network element such as a Mobility Management Entity (MME), a Serving Gateway, or a Packet Data Network Gateway (PGW), in the General Packet Radio Service (General Packet Radio Service, referred to as GPRS)
  • EPC Evolved Packet Core
  • MME Mobility Management Entity
  • PGW Packet Data Network Gateway
  • GPRS General Packet Radio Service
  • the core network includes a network element such as a Serving GPRS Support Node (SGSN); and an E-UTRAN includes an Evolved Node B (eKB).
  • SGSN Serving GPRS Support Node
  • eKB Evolve
  • MTC User Equipment Trigger (Device Trigger) is one of the basic requirements for the MTC system.
  • the problem of this requirement is: In order to control the communication of the MTC user equipment, the polling method initiated by the MTC server (Server) can be adopted. For communication, for the communication initiated by the MTC user equipment, the MTC Server sometimes needs to poll the data from the MTC user equipment. If the MTC server fails to query or the IP address of the MTC user equipment is unavailable, the MTC server can use the MTC user equipment trigger to establish communication with the MTC user equipment. If the network cannot trigger the MTC user equipment, the network reports to the MTC server that the MTC user equipment trigger fails, and the MTC user equipment trigger is implemented in 3GPP through control plane signaling.
  • the MTC user equipment triggers the mobile originating (MO) and mobile terminating (MT) services, that is, the MTC user equipment sends or receives information.
  • the proposed solution includes: sending the trigger information of the MTC user equipment through the T4 interface, or sending the trigger information of the MTC user equipment through the control plane signaling of the T5 interface, or the user plane through the Gi/SGi interface.
  • the MTC server sends control plane signaling including the trigger information of the MTC user equipment to the network node, and the network node parses and processes the trigger information of the MTC user equipment in the control plane signaling.
  • the MTC user equipment trigger information is sent to the user equipment (User Equipment, referred to as UE).
  • the MTC architecture in 3GPP is shown in Figure 1.
  • the MTC application device (Application) that connects the MTC user (User) communicates with the MTC server through the Application Programming Interface (API) interface, or through The Gi/SGi interface directly communicates with the Gateway GPRS Support Node (GGSN) PGW/Evolved Packet Data Gateway (EPDG) in the 3GPP network; the MTC server communicates with the GGSN PGW through the MTCi interface.
  • GGSN Gateway GPRS Support Node
  • EPDG Evolved Packet Data Gateway
  • GGSN/PGW EPDG communicates with user equipment through a radio access network (Radio Access Network, RAN for short);
  • the MTC server communicates with the MTC through the MTCsp interface.
  • the MTC Interworking Function (MTC-IWF) sends control plane signaling including the trigger information of the MTC user equipment or the Short Message Service-Service Center (SMS-SC) through the MTCsms interface.
  • SMS-SC Short Message Service-Service Center
  • IP-SM-GW IP-Short-Message-Gateway
  • IP-SM-GW sends control plane signaling including trigger information of MTC user equipment, which is controlled by MTC-IWF or SMS-SC/IP-SM-GW.
  • the face signaling is sent to the MME/SGSN or the Short Message Service-Gateway MSC For Short Message Service (SMS-GMSC, or the SMS Router) or the Mobile Service Switching Center (Mobile-services Switching).
  • SMS-GMSC Short Message Service
  • MSC Mobile Service Switching Center
  • VLR Visitor Location Register
  • HSS Home Subscriber Server
  • HLR Home Location Register
  • a requirement for MTC user equipment grouping is proposed in 3GPP TS 22.368, for example, the MTC server wants to collect status information of a plurality of MTC user equipments.
  • the method includes: the system associates one MTC user equipment to a single MTC packet; each group-based MTC function is applicable to each member in the MTC group; the identity of the MTC group in the 3GPP network is unique.
  • no solution has been given for how to trigger a group of MTC user devices.
  • SUMMARY OF THE INVENTION The present invention provides a communication method and system for a machine type communication user equipment to at least solve the problem in the related art that there is no solution for triggering a group of MTC user equipment.
  • a communication method of an MTC user equipment including: one or more MTC user equipments in an MTC user equipment group receive a group-carrying trigger from an MTC server according to the received group paging information.
  • the one or more MTC user equipments in the MTC user equipment group receive the broadcast information carrying the group trigger information from the MTC server according to the received group paging information, including: one or more MTC user equipments determine that they are received by the MTC user equipment.
  • Group paging information where the group paging information is used to indicate the change of the broadcast information; the one or more MTC user equipments determine, according to the group paging information, whether the group trigger information carried in the broadcast information is the group trigger information required by the group; If yes, one or more MTC user equipments obtain group trigger information from the broadcast information; if not, one or more MTC user equipments discard the group trigger information.
  • the one or more MTC user equipments determine, according to the group paging information, whether the group trigger information carried in the broadcast information is the group trigger information required by the group, and the group that is carried by the one or more MTC user equipments according to the group paging information.
  • the method further includes: the MTC server passes the MTC user.
  • the service node of the device group sends the group trigger information to the access network device; the access network device that receives the group trigger information broadcasts the group trigger information to the area where the MTC user equipment group is located.
  • the sending, by the MTC server, the group triggering information to the access network device by the serving node of the MTC user equipment group includes: the MTC interconnection function receives the group triggering information sent by the MTC server, where the group triggering information includes at least one of the following: The user equipment group identifier and the physical area corresponding to the group trigger information; the MTC interconnection function updates the physical area in the group trigger information to one of the following identifiers: tracking area identifier, routing area identifier, location area identifier, and cell identifier; MTC interconnection The function queries the subscription information of the MTC user equipment group and the service node of the MTC user equipment group according to the MTC user equipment group identifier; the MTC interconnection function sends the group trigger information to the access network device through the service node.
  • the MTC interconnection function sends the group trigger information to the access network device by using the serving node.
  • the MTC interconnection function sends the group trigger information to the serving node in one of the following manners: T4 interface, T5 interface, cell broadcast center CBC:, broadcast The multicast service center BMSC; the service node sends group trigger information to the access network device, and sends the group paging information to the MTC user equipment group through the access network device.
  • the MTC interconnection function sends the group trigger information to the service node in one of the following manners: the T4 interface, the T5 interface, the CBC, and the BMSC include: the MTC interconnection function sends the group trigger information to the service node in the form of a short message through the T4 interface; The interconnection function sends group trigger information to the service node in the form of short message or dedicated control signaling through the T5 interface: The MTC interconnection function sends group trigger information to the service node in the form of a cell broadcast service CBS through the CBC; the MTC interconnection function passes the BMSC The group trigger information is sent to the service node in the form of a multimedia broadcast multicast service MBMS.
  • the MTC interconnection function sends the group trigger information to the service node in the form of a multimedia broadcast multicast service MBMS.
  • the method further includes: a packet data network gateway PGW/ The gateway general packet radio service support node GGSN receives the group trigger information sent by the MTC server, wherein the MTC server is directly connected to the PGW/GGSN through the Gi/SGi interface or through the service capability server SCS; the PGW/GGSN passes through the signaling gateway SGW.
  • a packet data network gateway PGW/ The gateway general packet radio service support node GGSN receives the group trigger information sent by the MTC server, wherein the MTC server is directly connected to the PGW/GGSN through the Gi/SGi interface or through the service capability server SCS; the PGW/GGSN passes through the signaling gateway SGW.
  • the one or more MTC user equipments receive the group paging information, and establish a public data network PDN connection with the PGW/GGSN, wherein the MTC user equipment in the MTC user equipment group shares the PDN connection;
  • the PDN connection sends group trigger information to the MTC user equipment group.
  • the broadcast information may be sent in one of the following manners: multicast control channel MCCH information, CBS information, system information.
  • the system information is a system information block SIB designed for the MTC user equipment, and only the MTC user equipment listens for and reads system information.
  • the serving node of the MTC user equipment group comprises at least one of the following: a mobility management entity MME, a serving general packet radio service support node SGSN, and a mobile switching center MSC.
  • the access network device comprises at least one of the following: an evolved Node BeNB, a NodeB, a Radio Network Controller RNC, a Base Station Controller BSC, and a Base Station BTS.
  • the broadcast information carrying the group trigger information is sent periodically.
  • an MTC user equipment including: a receiving module, configured to receive, according to the received group paging information, broadcast information carrying group trigger information from an MTC server, where The MTC user equipment is used to trigger the MTC user equipment group; the communication module is configured to communicate with the MTC server according to the group trigger information.
  • the receiving module includes: a determining unit, configured to determine that the group paging information is received by itself, wherein the group paging information is used to indicate a change of the broadcast information; and the determining unit is configured to determine that the broadcast information is carried according to the group paging information Whether the group trigger information is the group trigger information required by itself; the obtaining unit is set to obtain the group trigger information from the broadcast information when the judgment result is yes; the discarding unit is set to be in the case that the judgment result is no , Discard group trigger information.
  • a determining unit configured to determine that the group paging information is received by itself, wherein the group paging information is used to indicate a change of the broadcast information
  • the determining unit is configured to determine that the broadcast information is carried according to the group paging information Whether the group trigger information is the group trigger information required by itself; the obtaining unit is set to obtain the group trigger information from the broadcast information when the judgment result is yes; the discarding unit is set to be in the case that the judgment result is no
  • the determining unit includes: a first determining subunit, configured to determine, according to the group identifier carried in the group paging information, whether the group paging information corresponds to the MTC user equipment group; and the second determining subunit is set to be If yes, the group trigger information is used to determine whether the group trigger information is the group trigger information required by the group triggering information.
  • the discarding subunit is set to discard the group paging information if the judgment result is negative.
  • a communication system for an MTC user equipment which includes an MTC server, an MTC interconnection function, a packet data network gateway PGW/Gateway general packet radio service support node GGSN, and an MTC user equipment.
  • the service node of the MTC user equipment group and the access network device where the MTC server is set to generate group trigger information; the MTC interconnection function is set to be connected through the T4 interface or T5.
  • the port or cell broadcast center CBC or the broadcast multicast service center BMSC sends the group trigger information;
  • the PGW/GGSN is set to send the group trigger information through the user plane;
  • the service node of the MTC user equipment group is set to send the group search to the MTC user equipment group. Calling information, and sending group trigger information to the access network device;
  • the MTC user equipment in the MTC user equipment group includes: a receiving module, configured to receive, according to the received group paging information, broadcast information that carries the group trigger information from the MTC server, where the group trigger information is used to trigger the MTC user equipment group.
  • the MTC user equipment the communication module, configured to communicate with the MTC server according to the group trigger information.
  • the device broadcasts the group trigger information to the MTC user equipment group by using the broadcast information, and simultaneously triggers multiple MTC user equipments in a group, optimizes the group triggering process, and reduces the network resources occupied by the group triggering process.
  • FIG. 1 is a schematic diagram of an MTC architecture in 3GPP according to the related art
  • FIG. 2 is a flowchart of a communication method of an MTC user equipment according to an embodiment of the present invention
  • FIG. 3 is an MTC user according to a preferred embodiment of the present invention.
  • FIG. 4 is an interaction flowchart of a communication method of an MTC user equipment according to a preferred embodiment of the present invention.
  • FIG. 5 is an interaction of a communication method of an MTC user equipment according to a preferred embodiment 2 of the present invention
  • Figure 6 is a flow chart showing the interaction of the communication method of the MTC user equipment according to the preferred embodiment 3 of the present invention
  • Figure 7 is a block diagram showing the structure of the MTC user equipment according to the embodiment of the present invention
  • FIG. 9 is a block diagram showing the structure of a communication system of an MTC user equipment according to a preferred embodiment of the present invention.
  • FIG. 2 is a flowchart of a communication method of an MTC user equipment according to an embodiment of the present invention. As shown in FIG. 2, the following steps S202 to S204 are included. Step S202: The one or more MTC user equipments in the MTC user equipment group receive the broadcast information carrying the group trigger information from the MTC server according to the received group paging information, where the group trigger information is used to trigger the MTC user equipment group. MTC user equipment. Step S204, one or more MTC user equipments communicate with the MTC server according to the group trigger information.
  • the group triggering information is broadcasted to the MTC user equipment group by using the broadcast information, so that multiple MTC user equipments in a group are triggered at the same time, the group triggering process is optimized, and the network resources occupied by the group triggering process are reduced.
  • the MTC server refers to an MTC application server (Application Server, abbreviated as AS) and/or an MTC Service Capability Server (SCS).
  • AS Application Server
  • SCS MTC Service Capability Server
  • the foregoing step S202 includes: determining, by the one or more MTC user equipments, that the group paging information is received by the group, wherein the group paging information is used to indicate a change of the broadcast information; and the one or more MTC user equipments determine the group trigger according to the group paging information.
  • the information is trigger information required by itself; if yes, one or more MTC user equipments obtain group trigger information from the broadcast information; if not, one or more MTC user equipments discard the group trigger information. In order to ensure that the received group paging information is indeed corresponding to the MTC user equipment group, one or more
  • the MTC user equipment determines, according to the group paging information, whether the group trigger information is the group trigger information required by the group.
  • the one or more MTC user equipments determine whether the group paging information is related to the MTC user equipment group according to the group identifier carried in the group paging information. Corresponding; if yes, one or more MTC user equipments determine, according to the group identifier carried in the group trigger information, whether the group trigger information is the group trigger information required by itself; if not, one or more MTC user equipments discard the group page information.
  • the method further includes: the MTC server sends the group trigger information to the access network device by using the serving node, and the access network device that receives the group trigger information broadcasts the group trigger information to the area where the MTC user equipment group is located.
  • the MTC server sends the group trigger information to the access network device by using the serving node, and the access network device that receives the group trigger information broadcasts the group trigger information to the area where the MTC user equipment group is located.
  • the MTC interconnection function receives the group trigger information sent by the MTC server, where the group trigger information includes at least one of the following: an MTC user equipment group identifier, a physical area corresponding to the group trigger information; and an MTC interconnection function to trigger the physical information in the group trigger information.
  • the area is updated to one of the following identifiers: a tracking area identifier, a routing area identifier, a location area identifier, and a cell identifier; the MTC interconnection function queries the subscription information of the MTC user equipment group and the service node of the MTC user equipment group according to the MTC user equipment group identifier.
  • the MTC interconnect function sends group trigger information to the access network device through the serving node.
  • the MTC interconnection function sends the group trigger information to the access network device by using the serving node.
  • the MTC interconnection function sends the group trigger information to the service node in one of the following ways: T4 interface, T5 interface, and cell broadcast center (Cell Broadcast Center) , referred to as CBC), Broadcast Multicast Service Center (BMSC); the service node sends group trigger information to the access network device, and sends group paging information to the MTC user equipment group through the access network device. .
  • Cell Broadcast Center Cell Broadcast Center
  • BMSC Broadcast Multicast Service Center
  • the MTC interconnection function sends the group trigger information to the service node in one of the following manners: the T4 interface, the T5 interface, the CBC, and the BMSC include: the MTC interconnection function sends the group trigger information to the service node in the form of a short message through the T4 interface; The interconnection function sends the group trigger information to the service node in the form of short message or dedicated control signaling through the T5 interface; the MTC interconnection function sends the CBC to the service node in the form of a Cell Broadcast Service (CBS).
  • the group trigger information is sent to the service node in the form of a Multimedia Broadcast Multicast Service (MBMS) through the BMSC.
  • the service node of the MTC user equipment group includes at least one of the following: MME, SGSN, and Mobile Switching Center (MSC).
  • the PGW/Gateway General Packet Radio Service Supporting Node receives the group trigger information sent by the MTC server, where the MTC server and the PGW/GGSN are directly connected through the Gi/SGi interface or through the SCS.
  • the connection PGW/GGSN sends a downlink data notification (Downlink Data Notification, DDN for short) to the serving node of the MTC user equipment group through the signaling gateway SGW; one or more MTC user equipments receive the group paging information, and the PGW/
  • the GGSN establishes a packet data network (PPN) connection, in which the MTC user equipment in the MTC user equipment group shares the PDN connection; the SGW sends the group trigger information to the MTC user equipment group through the PDN connection.
  • PPN packet data network
  • the broadcast information may be sent in one of the following manners: a Multicast Control Channel (MCCH) information, a Cell Broadcast Service (CBS) information, and System Information (System Information).
  • MCCH Multicast Control Channel
  • CBS Cell Broadcast Service
  • System Information System Information
  • SI System Information
  • the system information is a System Information Block (SIB) designed specifically for the MTC user equipment, and only the MTC user equipment listens for and reads the SIB message.
  • SIB System Information Block
  • the service node of the foregoing MTC user equipment group includes at least one of the following: MME, SGSN, MSC.
  • the access network device includes at least one of the following: an eNB, a NodeB, a radio network controller (Radio Network Controller, RNC for short), a base station controller (BSC), and a base station (Base Transceiver Station, referred to as BTS).
  • the broadcast information carrying the group trigger information is sent periodically.
  • the broadcast information in the following preferred embodiment refers to system information, which illustrates a process of triggering a group of MTC user equipments by using group trigger information.
  • the present invention can trigger a group of MTC user equipments by using a control plane or a user plane, as follows:
  • the MTC-Interworking Function (MTC-IWF) passes through the T4/T5 interface to the MME/SGSN.
  • the MSC sends group trigger information (for triggering a group of MTC user equipments), and the MME/SGSN/MSC that receives the group trigger information sends the group trigger information to the RA node, and sends the group paging information to the MTC user equipment group through the RA node.
  • the RAN node that receives the group trigger information broadcasts the group trigger information to the MTC user equipment group by using the broadcast information; the PGW/GGSN receives the group trigger information, sends a downlink data notification to the MME/SGSN, and the MME/SGSN sends the group information to the MTC user equipment group.
  • the group paging information, the MTC user equipment group and the PGW/GGSN establish a PDN connection, and the Signaling Gateway (SGW) sends the group paging information to the MTC user equipment group through the connection, thereby Triggering a group of MTC user equipments by broadcast information broadcast, without separately transmitting trigger information to each MTC user equipment in one MTC user equipment group, reducing the network The number of messages transmitted, so as not to affect radio capacity.
  • SGW Signaling Gateway
  • Step S302 The MTC-IWF sends an MTC user equipment group to an MME/SGSN/MSC.
  • Group trigger information In this step, the MTC server sets the group to trigger the request information content, and sends the group trigger information to the Service Capability Server (SCS), where the SCS is located outside the 3GPP network or In the 3GPP network, the group triggering information includes at least: an MTC user equipment group identifier (Group ID), which is used to uniquely identify the MTC user equipment group that needs to be triggered.
  • SCS Service Capability Server
  • the group triggering information includes at least: an MTC user equipment group identifier (Group ID), which is used to uniquely identify the MTC user equipment group that needs to be triggered.
  • Group ID an MTC user equipment group identifier
  • the SCS sends the group trigger information to the MTC-IWF.
  • the HSS/HLR queries the subscription information of the user equipment and the service nodes of the MTC UE, such as the MME, the SGSN, and the MSC.
  • the MTC-IWF sends the set of trigger information to the MME/SGSN/MSC.
  • Step S304a The MME/SGSN/MSC that receives the group trigger information sends the group trigger information to the RAN node.
  • the RAN node is at least one of the following: an eNB, a NodeB, an RNC, and a BSC.
  • Step S304b The MME/SGSN/MSC sends the group paging information to the MTC user equipment in the MTC user equipment group through the RAN node.
  • the group paging information includes a group identifier group ID, and the MTC user equipment determines whether it is the required paging information by using the group ID. If no, the group of paging information is discarded, and if so, the other steps are continued.
  • the group paging information is used to indicate to the MTC user equipment group that the broadcast information including the group trigger information is changed, and the values of the group paging frame PF and the paging subframe PO are calculated by group ID or group IMSI or notified by broadcast information. get.
  • Step S306 the RAN node broadcasts the trigger information to the MTC user equipment by using the broadcast information.
  • the broadcast information is dedicated broadcast information, that is, broadcast information specially designed for triggering the MTC user equipment group; the broadcast information includes content triggered by the MTC user equipment group, for example, the response of the MTC user equipment group that the AS/SCS wishes to receive the trigger information (eg, Send a status report immediately, or send a status report after a while, etc.).
  • the group trigger information is periodically sent, and the foregoing broadcast period is sent by the existing broadcast information to the target MTC user equipment group.
  • Step S308 the MTC user equipment that receives the group paging information receives the group trigger information.
  • the MTC user equipment reads the group trigger information in the corresponding resource, and communicates with the AS/SCS according to the content of the group trigger information.
  • the preferred embodiment of the present invention describes that the MTC-IWF sends the group trigger information through the T4 interface, and uses the broadcast information to implement the scenario of triggering a group of MTC user equipments.
  • FIG. 4 is a diagram of the MTC user equipment according to the preferred embodiment 1 of the present invention. As shown in FIG. 4, the method includes the following steps: Step S402: The MTC server (AS) sets group trigger indication information and sends it to the MTC-IWF (via scs).
  • the AS is located outside the 3GPP carrier network, and the SCS is located in or outside the 3GPP carrier network, and the MTC-IWF is located in the 3GPP network.
  • the MTC-IWF needs to authenticate it.
  • the group trigger information sent by the SCS to the MTC-IWF includes at least: an MTC user equipment group identifier, and a physical area corresponding to the group trigger information (ie, in which physical areas the group trigger information is sent).
  • the MTC-IWF sends the group trigger information to the SMSC through the T4 interface.
  • the MTC-IWF uses SMS to send group trigger information to the Short Message Service Center (SMSC).
  • SMSC Short Message Service Center
  • the MTC-IWF queries the HSS/HLR for the subscription information of the MTC user equipment group and the service node information by using the group ID in the group trigger information, and adds the service node information of the MTC user equipment group to the group trigger information.
  • the MTC-IWF generally needs to update the physical area in the group trigger information to one of the following corresponding identifiers: Tracking Area Identifier (TAI), Router Area Identifier (RAI), Location Area Location Area Identifier (LAI), cell identifier (cell Identifier).
  • Step S406 the SMSC sends group trigger information to the MME/SGSN/MSC.
  • the SMSC sends a group trigger message to the MME/SGSN/MSC by using a short message; the MME/SGSN/MSC is a serving node of the target MTC user equipment group, that is, the target MTC user equipment group is registered in the MME/SGSN/MSC.
  • the group trigger information is a short message, and the target MTC user equipment identifier in the short message is the group identifier group IDo.
  • Step S408a the MME/SGSN/MSC sends the group trigger information to the RAN node.
  • the MME/SGSN MSC may query the cell corresponding to the group ID through the HSS/HLR, and send the cell identifier to the corresponding RAN node.
  • the RAN node is an eNB, a NodeB, an RNC, a BSC, and a BTS.
  • Step S408b the MME/SGSN/MSC sends the group paging information to the MTC user equipment group through the RAN node.
  • the group paging information is sent by the RAN node, and the group paging information is used to indicate to the MTC user equipment group that the broadcast information including the group trigger information changes.
  • the group paging information includes at least a group ID, and the MTC user equipment determines, according to the group ID in the group paging information, whether the group paging information is the required group paging information, and if otherwise, discards the group paging information, if yes, continues. Perform other steps.
  • the value of the group paging frame (Page Frame, PF for short) and the paging opportunity/subframe (Page Occasion, PO for short) are calculated by group ID or group IMSI.
  • Step S410 The RAN node broadcasts broadcast information including group trigger information to the MTC user equipment group.
  • the RAN node broadcasts the group trigger information to the cell where the target MTC user equipment group is located by using the broadcast information, where the broadcast information is dedicated system broadcast information, that is, broadcast information for the MTC user equipment group; the broadcast information is used by the RAN.
  • the node sends the information periodically, and the foregoing period is sent to the MTC user equipment through the existing broadcast information.
  • the broadcast information includes content triggered by the MTC user equipment group, for example, a response of the MTC user equipment group that the AS/SCS wishes to receive the group trigger information (eg, the MTC user equipment immediately sends a status report, or sends a status report after a period of time, etc.).
  • the MTC user equipment that receives the group paging information receives the group trigger information.
  • the MTC user equipment determines whether the group trigger information is required by the group identifier in the group trigger information. If yes, the MTC user equipment reads the group trigger information, and communicates with the AS/SCS according to the content of the group trigger information. If no, the group trigger information is discarded.
  • Embodiment 2 The preferred embodiment describes that the MTC-IWF sends group trigger information through the T5 interface, and uses the broadcast information to implement a scenario for triggering a group of MTC user equipments.
  • FIG. 5 is a schematic diagram of the present invention.
  • the method includes the following steps: Step S502: The MTC server (AS) sets the group trigger indication information and sends the information to the MTC-IWF ( by
  • Step S504 the MTC-IWF sends the group trigger information to the MME/SGSN/MSC through the T5 interface. Specifically, the MTC-IWF queries the HSS/HLR for the service node information of the target MTC user equipment group according to the group ID in the group trigger information.
  • the service node of the MTC user equipment group is the MME/SGSN/MSC: .
  • the group trigger information may be sent to the MME/SGSN/MSC through a short message or a dedicated control signaling. In this case, the group trigger information is a short message or control signaling.
  • Step S506a the MME/SGSN/MSC sends group trigger information to the RAN node.
  • Step S506b the MME/SGSN/MSC sends the group paging information to the MTC user equipment group through the RAN node.
  • step S506a and step S506b are the same as steps S408a and S408b, respectively, and are not described herein again.
  • Step S508 the RAN node broadcasts broadcast information including group trigger information to the MTC user equipment group. This step is the same as step S410, and details are not described herein again.
  • Step S510 the MTC user equipment that receives the group paging information receives the group trigger information.
  • Step S602 The MTC server (AS) sets the group trigger indication information and sends it to the PGW/GGSN (either directly or through the SCS).
  • the AS can be directly connected to the PGW/GGSN through the Gi/SGi interface, or through SCS and
  • Step S604 The PGW/GGSN sends the group trigger information to the SGW, and the SGW sends Downlink Data Notification (DDN) information to the MME/SGSN. It should be noted that the SGW may simultaneously send a DDN to the MME, the SGSN, or send a DDN to one of the MME/SGSN according to the network configuration information.
  • Step S606 the MME/SGSN sends the group paging information to the MTC user equipment group through the AN node. In this step, the MME/SGSN is a service node that receives DDN information.
  • the group paging information includes at least a group ID, and the PF/PO value of the group paging information is calculated by a group ID or a group IMSI.
  • Step S608 the MTC user equipment that receives the group paging information initiates a service request process, and establishes a Public Data Network (PDN) connection with the PGW/GGSN.
  • the PDN connection is a shared connection, that is, a PDN connection to multiple MTC user equipments, and multiple MTC user equipments belonging to one group share a PDN connection (same IP address, port).
  • the SGW sends the group trigger information to the MTC user equipment through the PDN connection.
  • An embodiment of the present invention further provides an MTC user equipment, where the MTC user equipment can be used to implement the foregoing.
  • FIG. 7 is a structural block diagram of an MTC user equipment according to an embodiment of the present invention. As shown in FIG. 7, a receiving module 72 and a communication module 74 are included. The structure is described in detail below.
  • the receiving module 72 is configured to receive the broadcast information carrying the group trigger information from the MTC server according to the received group paging information, where the group trigger information is used to trigger the MTC user equipment in the MTC user equipment group; the communication module 74, Connected to the receiving module 72, it is arranged to communicate with the MTC server according to the group trigger information received by the receiving module 72.
  • the receiving module 72 includes: a determining unit, configured to determine that the group paging information is received by itself, wherein the group paging information is used to indicate a change of the broadcast information; the determining unit is connected to the determining unit, and is set to be grouped according to the group The information determines whether the group trigger information carried in the broadcast information is the group trigger information required by the user; the obtaining unit is connected to the determining unit, and is configured to obtain the group trigger information from the broadcast information if the determining result of the determining unit is yes The discarding unit is connected to the judging unit, and is set to discard the group trigger information if the judgment result of the judging unit is no.
  • a determining unit configured to determine that the group paging information is received by itself, wherein the group paging information is used to indicate a change of the broadcast information
  • the determining unit is connected to the determining unit, and is set to be grouped according to the group
  • the information determines whether the group trigger information carried in the broadcast information is the group trigger information required
  • the determining unit further includes: a first determining subunit, configured to determine, according to the group identifier carried in the group paging information, whether the group paging information corresponds to the MTC user equipment group; the second determining subunit, connected to the first determining The subunit is configured to determine, according to the group identifier carried in the group trigger information, whether the group trigger information is the group trigger information required by the group, and discard the subunit, and connect to the first A judging subunit is set to discard the group paging information if the judgment result of the first judging subunit is no.
  • the embodiment of the present invention further provides a communication system of an MTC user equipment, where the communication system of the MTC user equipment can be used to implement the communication method of the MTC user equipment.
  • FIG. 8 is a structural block diagram of a communication system of an MTC user equipment according to an embodiment of the present invention.
  • an MTC server 81 As shown in FIG. S, an MTC server 81, an MTC interconnection function 82, a PGW/GGSN 83. an MTC user equipment group 84, and an MTC user equipment are included. Group of service nodes 85 and access network devices 86. The structure is described in detail below.
  • the MTC server 81 is configured to generate group trigger information; the MTC interconnection function 82 is configured to send group trigger information through a T4 interface or a T5 interface or CBS or MBMS; the PGW/GGSN 83 is set to send group trigger information through the user plane; The service node 85 of the user equipment group is set to send the group to the MTC user equipment group.
  • the MTC user equipment in the MTC user equipment group 84 includes: a receiving module, configured to receive the carried group from the MTC server 81 according to the received group paging information The broadcast information of the trigger information, wherein the group trigger information is used to trigger the MTC user equipment in the MTC user equipment group; the communication module is connected to the receiving module, and is configured to communicate with the MTC server 81 according to the group trigger information received by the receiving module.
  • the communication system of the MTC user equipment may further include the following modules or devices.
  • the system includes: AS/SCS 91, MTC-IWF 92, PGW/GGSN and SGW 93, SMSC 94. MME/SGSN/MSC 95. Radio Access Network Node 96, MTC User Equipment 97.
  • the AS/SCS 91 (implementing the function of the MTC server 81) is configured to generate the MTC group trigger information, where the group trigger information includes the MTC user equipment group ID;
  • the MTC-IWF 92 (implementing the function of the MTC interconnection function 82 described above) is set to select a trigger path, and the received MTC user equipment group trigger information is sent through the T4/T5/user plane; PGW/GGSN and!] SGW 93 (Implementing the function of the PGW/GGSN 83 described above), configured to receive the group trigger information sent by the AS/SCS, and send the received group trigger information to the MTC user equipment 97 through the user plane;
  • SMSC 94 configured to receive the short message group trigger information sent by the MTC-IWF92, and send the received group trigger information to the MME/SGSN/MSC 95;
  • the MME/SGSN/MSC 95 (implementing the function of the service node 85 of the MTC user equipment group) is configured to receive the group trigger information sent by the MTC-IWF 92 or the SMSC 94, and send the group trigger information to the radio access network node 96. Also arranged to transmit group paging information to the MTC user equipment 97 via the radio access network node 96; the radio access network node 96 (implementing the functionality of the radio access network node 86 described above), configured to receive 93 or 95 transmissions The group triggers the information, and sends the group trigger information to the target user equipment by using the broadcast information or the user plane data.
  • the radio access network node 96 includes at least one of the following: BSC; BTS, RNC, NodeB, eNodeB.
  • the MTC user equipment 97 [implementing the functions of the MTC user equipment group 84 described above] is configured to receive group paging information and group trigger information, and is further configured to communicate with the AS/SCS 91 based on the contents of the group trigger information.
  • the MTC user equipment is a group of MTC UEs, that is, two or more MTC user equipments, and the MC equipment may be an MTC user equipment gateway or a single MTC user equipment.
  • the device broadcasts the group trigger information to the MTC user equipment group by using the broadcast information, and simultaneously triggers multiple MTC user equipments in a group, optimizes the group triggering process, and reduces the network resources occupied by the group triggering process.
  • modules or steps of the present invention can be implemented by a general-purpose computing device, which can be concentrated on a single computing device or distributed over a network composed of multiple computing devices.
  • they may be implemented by program code executable by the computing device, such that they may be stored in the storage device by the computing device, or they may be separately fabricated into individual integrated circuit modules, or they may be Multiple modules or steps are made into a single integrated circuit module.
  • the invention is not limited to any specific combination of hardware and software.

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Abstract

本发明公开了一种 MTC用户设备的通信方法及系统，该方法包括：MTC用户设备组中的一个或多个 MTC用户设备根据接收到的组寻呼信息接收来自 MTC服务器的携带有组触发信息的广播信息，其中，组触发信息用于触发 MTC用户设备组中的 MTC 用户设备；一个或多个 MTC用户设备根据组触发信息与 MTC服务器进行通信。通过本发明，利用广播信息向 MTC用户设备组广播组触发信息，实现同时触发一组中的多个 MTC用户设备，优化组触发流程，减少组触发过程占用的网络资源。

Description

机器类型通信用户设备的通信方法及系统 技术领域 本发明涉及通信领域， 具体而言， 涉及一种机器类型通信用户设备的通信方法及 系统。 背景技术
M2M (Machine to Machine) 指机器之间建立连接的所有技术和手段。 M2M理念 在上个世纪九十年代就出现了， 但是只停留在理论阶段。 2000年以后， 随着移动通信 技术的发展， 以移动通信技术实现机器设备的联网成为可能。 2002年左右 M2M业务 就在市场上出现， 并在随后的几年迅速发展， 成为了众多通信设备商和电信运营商的 关注焦点。 目前全球的机器数量比人的数量要多很多， 因此可以预见到 M2M技术的 良好的市场前景。 对 M2M通信应用场景研究表明在移动网络上提供 M2M通信具有潜在的市场前 景。 但 M2M业务对系统提出了很多新的要求， 为了增强移动网络在这方面的竞争力， 有必要对现有的移动网络进行优化， 来更有效的支持 M2M通信。 现有的移动通信网络主要针对人与人的通信进行设计， 而对机器与机器， 人与机 器的通信则优化不足。此外，运营商如何能够以低成本提供 M2M通信服务，也是 M2M 通信部署成功的关键。 基于以上情况， 有必要研究移动网络支持 M2M通信的解决方案， 解决方案要最 大限度重用现有网络， 降低大量 M2M通信对网络造成的影响以及运营维护的复杂度。 目前电信市场竞争日趋激烈， 资费不断下降， 运营商利润空间不断减小， 以人为 基础的通信市场正在趋于饱和， M2M对运营商来说是全新的发展机遇。 为了有效地利用移动网络资源， 第三代合作伙伴计划 （3rd Generation Partnership Project, 简称为 3GPP ) 提出了机器类型通信 （Machine Type Communication, 简称为 MTC) , 即机器对机器 （Machine to Machine )、 机器对人 （Machine to Man) 进行通讯 的业务， 其业务范围远远超出了以往人对人（Human to Human, 简称为 H2H)之间的 通讯， MTC在接入控制、 计费、 安全性、 服务质量（Quality of Service, 简称为 QoS)、 业务模式等方面与现在的 H2H通讯模式有很大的区别。 3GPP演进分组系统 （Evolved Packet System, 简称为 EPS ) 架构中， EPS包括了 无线接入网 （如 UMTS陆地无线接入网 （Universal Terrestrial Radio Access Network, 简称为 UTRAN)、演进的 UTRA (Evolved UTRAN,简称为 E-UTRAN)、 GSM/EDGE 无线接入网络 （GSM/EDGE Radio Access Network, 简称为 GE AN) ) 和核心网， 如 在演进分组核心网 （Evolved Packet Core, 简称为 EPC) 中有移动管理实体 （Mobility Management Entity, 简称为 MME)、 服务网关 （Serving Gateway), 分组数据网网关 (Packet Data Network Gateway,简称为 PGW)等网元，在通用分组无线业务（General Packet Radio Service,简称为 GPRS )核心网中包括服务 GPRS支持节点（Service GPRS Support Node,简称为 SGSN)等网元；在 E-UTRAN中包括演进的节点 B(Evolved Node B , 简称为 eKB)。
MTC用户设备触发 （Device Trigger) 是对 MTC系统的基本要求之一， 该要求所 关注的问题是： 为了控制 MTC用户设备的通信， 可以采用由 MTC服务器 （Server) 发起轮询（poll)的方式进行通信， 对于 MTC用户设备发起的通信， 有时也需要 MTC Server从 MTC用户设备 poll数据。 如果 MTC服务器查询失败或者 MTC用户设备的 IP地址不可用， 则 MTC服务器可以使用 MTC用户设备触发来与 MTC用户设备建立 通信。 如果网络不能触发 MTC用户设备， 则网络向 MTC服务器报告 MTC用户设备 触发失败， MTC用户设备触发在 3GPP中通过控制面信令实现。
MTC用户设备触发包括移动主叫 （Mobile Originated, 简称为 MO) 和移动被叫 (Mobile Terminating, 简称为 MT，）业务， 即包括 MTC用户设备发送或者接收信息。 为了实现 MTC用户设备触发请求的有效传输， 已提出的方案包括： 通过 T4接口 发送 MTC用户设备触发信息， 或者通过 T5接口控制面信令发送 MTC用户设备触发 信息， 或者通过 Gi/SGi 接口用户面发送 MTC 触发信息。 对于通过控制面信令发送 MTC用户设备触发信息的方式， MTC服务器发送包含 MTC用户设备触发信息的控制 面信令到网络节点， 网络节点将控制面信令中的 MTC用户设备触发信息解析处理， 然后发送 MTC用户设备触发信息到用户设备 （User Equipment, 简称为 UE)。 3GPP 中的 MTC架构如图 1 所示， 在用户面， 连接 MTC用户 （User) 的 MTC应用设备 (Application)通过应用程序编程接口（Application Programming Interface，简称为 API) 接口与 MTC服务器通信， 或者通过 Gi/SGi接口直接与 3GPP网络中的网关 GPRS支 持节点 （Gateway GPRS Support Node, 简称为 GGSN) PGW/演进分组数据网关 (Evolved Packet Data Gateway, 简称为 EPDG)通信； MTC服务器通过 MTCi接口与 GGSN PGW/EPDG通信； GGSN/PGW EPDG通过无线接入网（Radio Access Network, 简称为 RAN) 与用户设备通信； 在控制面， MTC服务器通过 MTCsp接口向 MTC互 联功能 （MTC Inter Working Function, 简称为 MTC-IWF) 发送包含 MTC用户设备触 发信息的控制面信令或通过 MTCsms 接口向短信业务-业务中心 （Short Message Service-Service Center, 简称为 SMS-SC，） /IP短信网关 （IP-Short-Message-Gateway, 简称为 IP-SM-GW) 发送包含 MTC 用户设备触发信息的控制面信令， MTC-IWF 或 SMS-SC/IP-SM-GW将控制面信令发送到 MME/SGSN或短信业务 -移动业务交换中心 网关 （Gateway MSC For Short Message Service, 简称为 SMS-GMSC, ) 或短信业务路 由器 （SMS Router) 或移动业务交换中心 （Mobile-services Switching Centre, 简称为 MSC) 或拜访位置寄存器 （Visitor Location Register, 简称为 VLR)， 进而通过 RAN 发送到 UE; 其中， MME/SGSN还可以通过 Gr/S6a/S6d接口从归属用户服务器（Home Subscriber Server, 简称为 HSS) 或归属位置寄存器 （Home Location Register, 简称为 HLR) 获得所述控制面信令。 在 3GPP TS22.368中提出了 MTC用户设备分组的需求， 如 MTC server想要收集 多个 MTC用户设备的状态信息。 包括： 系统将一个 MTC用户设备关联到单个 MTC 分组； 每个基于组的 MTC功能适用于 MTC组中的每个成员； MTC组在 3GPP网络中 的标识是唯一的。 相关技术中， 针对如何触发一组 MTC用户设备还没有给出解决方案。 发明内容 本发明提供了一种机器类型通信用户设备的通信方法及系统， 以至少解决相关技 术中， 没有如何触发一组 MTC用户设备的解决方案的问题。 根据本发明的一个方面， 提供了一种 MTC用户设备的通信方法， 包括： MTC用 户设备组中的一个或多个 MTC用户设备根据接收到的组寻呼信息接收来自 MTC服务 器的携带有组触发信息的广播信息， 其中， 组触发信息用于触发 MTC用户设备组中 的 MTC用户设备； 一个或多个 MTC用户设备根据组触发信息与 MTC服务器进行通 信。 优选地， MTC用户设备组中的一个或多个 MTC用户设备根据接收到的组寻呼信 息接收来自 MTC服务器的携带有组触发信息的广播信息包括：一个或多个 MTC用户 设备确定自身接收到组寻呼信息， 其中， 组寻呼信息用于指示广播信息的变化； 一个 或多个 MTC用户设备根据组寻呼信息判断广播信息中携带的组触发信息是否为自身 所需的组触发信息； 如果是， 一个或多个 MTC用户设备从广播信息中获取组触发信 息； 如果否， 一个或多个 MTC用户设备丢弃组触发信息。 优选地， 一个或多个 MTC用户设备根据组寻呼信息判断广播信息中携带的组触 发信息是否为自身所需的组触发信息包括： 一个或多个 MTC用户设备根据组寻呼信 息携带的组标识判断组寻呼信息是否与 MTC用户设备组相对应； 如果是， 一个或多 个 MTC用户设备根据组触发信息携带的组标识判断组触发信息是否为自身所需的组 触发信息； 如果否， 一个或多个 MTC用户设备丢弃组寻呼信息。 优选地，在 MTC用户设备组中的一个或多个 MTC用户设备根据接收到的组寻呼 信息接收来自 MTC服务器的携带有组触发信息的广播信息之前， 上述方法还包括： MTC服务器通过 MTC用户设备组的服务节点向接入网设备发送组触发信息； 收到组 触发信息的接入网设备向 MTC用户设备组所在的区域广播组触发信息。 优选地， MTC服务器通过 MTC用户设备组的服务节点向接入网设备发送组触发 信息包括： MTC互连功能接收到 MTC服务器发送的组触发信息， 其中， 组触发信息 至少包括以下之一： MTC用户设备组标识、 组触发信息对应的物理区域； MTC互连 功能将组触发信息中的物理区域更新为以下标识之一： 跟踪区标识、 路由区标识、 位 置区域标识、 小区标识； MTC互连功能根据 MTC用户设备组标识查询 MTC用户设 备组的签约信息以及 MTC用户设备组的服务节点； MTC互连功能通过服务节点向接 入网设备发送组触发信息。 优选地， MTC 互连功能通过服务节点向接入网设备发送组触发信息包括： MTC 互连功能通过以下方式之一向服务节点发送组触发信息： T4接口、 T5 接口、 小区广 播中心 CBC：、 广播多播业务中心 BMSC; 服务节点向接入网设备发送组触发信息， 并 通过接入网设备向 MTC用户设备组发送组寻呼信息。 优选地， MTC互连功能通过以下方式之一向服务节点发送组触发信息： T4接口、 T5接口、 CBC、 BMSC包括： MTC互连功能通过 T4接口以短信的形式向服务节点发 送组触发信息； MTC互连功能通过 T5接口以短信或专用控制信令的形式向服务节点 发送组触发信息： MTC互连功能通过 CBC以小区广播业务 CBS的形式向服务节点发 送组触发信息； MTC互连功能通过 BMSC以多媒体广播多播业务 MBMS的形式向服 务节点发送组触发信息。 优选地，在 MTC用户设备组中的一个或多个 MTC用户设备根据接收到的组寻呼 信息接收来自 MTC服务器的携带有组触发信息的广播信息之前， 方法还包括： 分组 数据网网关 PGW/网关通用分组无线业务支持节点 GGSN接收到 MTC服务器发送的 组触发信息，其中， MTC服务器与 PGW/GGSN通过 Gi/SGi接口直连或者通过服务能 力服务器 SCS连接； PGW/GGSN通过信令网关 SGW向 MTC用户设备组的服务节点 发送下行数据通知 DDN; —个或多个 MTC 用户设备接收到组寻呼信息， 并与 PGW/GGSN建立公用数据网 PDN连接， 其中， MTC用户设备组中的 MTC用户设备 共享 PDN连接； SGW通过 PDN连接向 MTC用户设备组发送组触发信息。 优选地， 广播信息可以通过以下方式之一发送： 多播控制信道 MCCH信息、 CBS 信息、 系统信息。 优选地， 系统信息是为 MTC用户设备设计的系统信息块 SIB, 只有 MTC用户设 备监听并读取系统信息。 优选地， MTC用户设备组的服务节点至少包括以下之一： 移动管理实体 MME、 服务通用分组无线业务支持节点 SGSN、 移动交换中心 MSC。 优选地， 接入网设备至少包括以下之一： 演进的节点 BeNB、 NodeB、无线网络控 制器 RNC、 基站控制器 BSC、 基站 BTS。 优选地， 携带有组触发信息的广播信息是周期性发送的。 根据本发明的另一个方面， 提供了一种 MTC用户设备， 包括： 接收模块， 设置 为根据接收到的组寻呼信息接收来自 MTC服务器的携带有组触发信息的广播信息， 其中， 组触发信息用于触发 MTC用户设备组中的 MTC用户设备； 通信模块， 设置为 根据组触发信息与 MTC服务器进行通信。 优选地， 接收模块包括： 确定单元， 设置为确定自身接收到组寻呼信息， 其中， 组寻呼信息用于指示广播信息的变化； 判断单元， 设置为根据组寻呼信息判断广播信 息中携带的组触发信息是否为自身所需的组触发信息； 获取单元， 设置为在判断结果 为是的情况下， 从广播信息中获取组触发信息； 丢弃单元， 设置为在判断结果为否的 情况下， 丢弃组触发信息。 优选地， 判断单元包括： 第一判断子单元， 设置为根据组寻呼信息携带的组标识 判断组寻呼信息是否与 MTC用户设备组相对应； 第二判断子单元， 设置为在判断结 果为是的情况下， 根据组触发信息携带的组标识判断组触发信息是否为自身所需的组 触发信息； 丢弃子单元， 设置为在判断结果为否的情况下， 丢弃组寻呼信息。 根据本发明的再一个方面， 提供了一种 MTC用户设备的通信系统， 其特征在于， 包括 MTC服务器、 MTC互连功能、 分组数据网网关 PGW/网关通用分组无线业务支 持节点 GGSN、 MTC用户设备组、 MTC用户设备组的服务节点、 接入网设备， 其中， MTC服务器， 设置为生成组触发信息； MTC互连功能， 设置为通过 T4接口或 T5接 口或小区广播中心 CBC或广播多播业务中心 BMSC发送组触发信息； PGW/GGSN, 设置为通过用户面发送组触发信息； MTC用户设备组的服务节点， 设置为向 MTC用 户设备组发送组寻呼信息， 以及向接入网设备发送组触发信息；
MTC用户设备组中的 MTC用户设备包括： 接收模块， 设置为根据接收到的组寻 呼信息接收来自 MTC服务器的携带有组触发信息的广播信息， 其中， 组触发信息用 于触发 MTC用户设备组中的 MTC用户设备； 通信模块， 设置为根据组触发信息与 MTC服务器进行通信。 通过本发明， 利用广播信息向 MTC用户设备组广播组触发信息， 实现同时触发 一组中的多个 MTC用户设备， 优化组触发流程， 减少组触发过程占用的网络资源。 附图说明 此处所说明的附图用来提供对本发明的进一步理解， 构成本申请的一部分， 本发 明的示意性实施例及其说明用于解释本发明， 并不构成对本发明的不当限定。 在附图 中： 图 1是根据相关技术的 3GPP中的 MTC架构示意图； 图 2是根据本发明实施例的 MTC用户设备的通信方法的流程图； 图 3是根据本发明优选实施例的 MTC用户设备的通信方法的交互流程图； 图 4是根据本发明优选实施例一的 MTC用户设备的通信方法的交互流程图； 图 5是根据本发明优选实施例二的 MTC用户设备的通信方法的交互流程图； 图 6是根据本发明优选实施例三的 MTC用户设备的通信方法的交互流程图； 图 7是根据本发明实施例的 MTC用户设备的结构框图； 图 8是根据本发明实施例的 MTC用户设备的通信系统的结构框图； 图 9是根据本发明优选实施例的 MTC用户设备的通信系统的结构示意图。 具体实施方式 需要说明的是， 在不冲突的情况下， 本申请中的实施例及实施例中的特征可以相 互组合。 下面将参考附图并结合实施例来详细说明本发明。 本发明实施例提供了一种 MTC用户设备的通信方法， 图 2是根据本发明实施例 的 MTC用户设备的通信方法的流程图， 如图 2所示， 包括如下的步骤 S202至步骤 S204。 步骤 S202， MTC用户设备组中的一个或多个 MTC用户设备根据接收到的组寻呼 信息接收来自 MTC服务器的携带有组触发信息的广播信息， 其中， 组触发信息用于 触发 MTC用户设备组中的 MTC用户设备。 步骤 S204, —个或多个 MTC用户设备根据组触发信息与 MTC服务器进行通信。 相关技术中， 针对如何触发一组 MTC用户设备还没有给出解决方案。 本发明实 施例中， 利用广播信息向 MTC用户设备组广播组触发信息， 实现同时触发一组中的 多个 MTC用户设备， 优化组触发流程， 减少组触发过程占用的网络资源。 需要说明的是， MTC服务器是指 MTC应用服务器 （Application Server, 简称为 AS) 和 /或 MTC服务能力服务器 （Service Capability Server, 简称为 SCS)。
MTC服务器触发 MTC用户设备之前， 需要先对 MTC用户设备进行寻呼， 且为 了保证接收到的组触发信息确实是对应于该 MTC用户设备组的， 需要判断接收到的 组触发信息是否是自身所需的。 上述步骤 S202包括： 一个或多个 MTC用户设备确定 自身接收到组寻呼信息， 其中， 组寻呼信息用于指示广播信息的变化； 一个或多个 MTC用户设备根据组寻呼信息判断组触发信息是否为自身所需的触发信息； 如果是， 一个或多个 MTC用户设备从广播信息中获取组触发信息； 如果否， 一个或多个 MTC 用户设备丢弃所述组触发信息。 为了保证接收到的组寻呼信息确实是对应该 MTC 用户设备组的， 一个或多个
MTC用户设备根据组寻呼信息判断组触发信息是否为自身所需的组触发信息包括：一 个或多个 MTC用户设备根据组寻呼信息携带的组标识判断组寻呼信息是否与 MTC用 户设备组相对应； 如果是， 一个或多个 MTC用户设备根据组触发信息携带的组标识 判断该组触发信息是否为自身所需的组触发信息； 如果否， 一个或多个 MTC用户设 备丢弃组寻呼信息。 在步骤 S202之前， 上述方法还包括： MTC服务器通过服务节点向接入网设备发 送组触发信息， 收到组触发信息的接入网设备向 MTC用户设备组所在区域广播组触 发信息。 ( 1 ) 通过控制面触发 MTC用户设备组
MTC互连功能接收到 MTC服务器发送的组触发信息， 其中， 组触发信息至少包 括以下之一： MTC用户设备组标识、 组触发信息对应的物理区域； MTC互连功能将 组触发信息中的物理区域更新为以下标识之一： 跟踪区标识、 路由区标识、 位置区域 标识、 小区标识； MTC互连功能根据 MTC用户设备组标识査询 MTC用户设备组的 签约信息以及 MTC用户设备组的服务节点； MTC互连功能通过服务节点向接入网设 备发送组触发信息。 优选地， MTC 互连功能通过服务节点向接入网设备发送组触发信息包括： MTC 互连功能通过以下方式之一向服务节点发送组触发信息： T4接口、 T5 接口、 小区广 播中心（Cell Broadcast Center, 简称为 CBC)、广播多播业务中心（Broadcast Multicast Service Center, 简称为 BMSC); 服务节点向接入网设备发送组触发信息， 并通过接入 网设备向 MTC用户设备组发送组寻呼信息。 优选地， MTC互连功能通过以下方式之一向服务节点发送组触发信息： T4接口、 T5接口、 CBC、 BMSC包括： MTC互连功能通过 T4接口以短信的形式向服务节点发 送组触发信息； MTC互连功能通过 T5接口以短信或专用控制信令的形式向服务节点 发送组触发信息； MTC互连功能通过 CBC以小区广播业务 （Cell Broadcast Service, 简称为 CBS)的形式向所述服务节点发送所述组触发信息； MTC互连功能通过 BMSC, 以多媒体广播多播业务（Multimedia Broadcast Multicast Service, 简称为 MBMS) 的形 式向所述服务节点发送所述组触发信息。 上述 MTC 用户设备组的服务节点至少包括以下之一： MME、 SGSN、 移动交换 中心 （Mobile Switching Center, 简称为 MSC)。
(2) 通过用户面触发 MTC用户设备组
PGW/网关通用分组无线业务支持节点 （Gateway General Packet Radio Service Supporting Node, 简称为 GGSN)接收到 MTC服务器发送的组触发信息， 其中， MTC 服务器与 PGW/GGSN通过 Gi/SGi接口直连或者通过 SCS连接 PGW/GGSN通过信 令网关 SGW 向 MTC 用户设备组的服务节点发送下行数据通知 （Downlink Data Notification, 简称为 DDN) ; —个或多个 MTC 用户设备接收到组寻呼信息， 并与 PGW/GGSN建立公用数据网 （Packet Data Network, 简称为 PDN)连接， 其中， MTC 用户设备组中的 MTC用户设备共享 PDN连接； SGW通过 PDN连接向 MTC用户设 备组发送组触发信息。 优选地， 上述广播信息可以通过以下方式之一发送： 多播控制信道 （Multicast Control Channel, 简称为 MCCH) 信息、 小区广播业务 （Cell Broadcast Service, 简称 为 CBS ) 信息、 系统信息 （System Information, 简称为 SI)。 优选地，系统信息是专门为 MTC用户设备设计的系统信息块（System Information Block, 简称为 SIB ), 只有 MTC用户设备监听并读取该 SIB消息。 上述 MTC用户设备组的服务节点至少包括以下之一： MME、 SGSN、 MSC。 上述接入网设备至少包括以下之一： eNB、NodeB、无线网络控制器（Radio Network Controller, 简称为 RNC)、 基站控制器 （Base Station Controller, 简称为 BSC)、 基站 (Base Transceiver Station, 简称为 BTS )。 优选地， 携带有组触发信息的广播信息是周期性发送的。 为了使本发明的技术方案和实现方法更加清楚， 下面将结合优选的实施例对其实 现过程进行详细描述。 以下优选实施例中的广播信息是指系统信息， 说明利用组触发 信息触发一组 MTC用户设备的过程。 由上述实施例可知， 本发明可以通过控制面或用户面触发一组 MTC用户设备， 具体如下： MTC互连功能（MTC-Interworking Function,简称为 MTC-IWF)通过 T4/T5 接口向 MME/SGSN MSC发送组触发信息（用于触发一组 MTC用户设备）， 收到组触 发信息的 MME/SGSN/MSC向 RA 节点发送该组触发信息，并通过 RA 节点向 MTC 用户设备组发送组寻呼信息， 收到组触发信息的 RAN节点通过广播信息向该 MTC用 户设备组广播组触发信息； PGW/GGSN接收到组触发信息， 向 MME/SGSN发送下行 数据通知， MME/SGSN 向 MTC 用户设备组发送组寻呼信息， MTC 用户设备组与 PGW/GGSN之间建立 PDN连接， 信令网关 （ Signaling Gateway, 简称为 SGW) 通过 该连接向该 MTC用户设备组发送组寻呼发信息由此， 便可以通过广播信息广播触发 一组 MTC用户设备， 而不需要分别对一个 MTC用户设备组中的每一个 MTC用户设 备发送触发信息， 减少了网络信息发送的数量， 从而不会影响无线容量。 图 3是根据本发明优选实施例的 MTC用户设备的通信方法的交互流程图，如图 3 所示， 该方法包括如下步骤： 步骤 S302， MTC-IWF向 MME/SGSN/MSC发送 MTC用户设备组的组触发信息。 本步骤中， MTC服务器设置组触发请求信息内容， 并将组触发信息发送到业务能 力服务器 （Services Capability Server, 简称为 SCS)， 其中， SCS位于 3GPP网络外或 3GPP网络中， 组触发信息至少包括： MTC用户设备组标识 （Group ID)， 用于唯一识 别需要触发的 MTC用户设备组。
SCS向 MTC-IWF发送组触发信息， MTC- IWF对收到的组触发信息认证之后， 通 过 HSS/HLR查询用户设备的签约信息和 MTC UE的服务节点，如 MME、SGSN、MSC：。 MTC-IWF向 MME/SGSN/MSC发送该组触发信息。 步骤 S304a，收到组触发信息的 MME/SGSN/MSC向 RAN节点发送该组触发信息。 其中， RAN节点为以下至少一种： eNB、 NodeB、 RNC、 BSC. BTS。 歩骤 S304b， MME/SGSN/MSC通过 RAN节点向 MTC用户设备组中的 MTC用 户设备发送组寻呼信息。 组寻呼信息中包含组标识 group ID, MTC用户设备通过 group ID判断是否为所需 寻呼信息。 如果否， 则丢弃该组寻呼信息， 如果是， 则继续执行其它步骤。 组寻呼信 息用于向 MTC用户设备组指示包含组触发信息的广播信息发生变化， 其组寻呼帧 PF 和寻呼子帧 PO的取值通过 group ID或 group IMSI计算得到或通过广播信息通知得到。 步骤 S306， RAN节点通过广播信息向 MTC用户设备广播触发信息。 广播信息为专用广播信息， 即专门为 MTC用户设备组触发设计的广播信息； 广 播信息包含 MTC用户设备组触发的内容， 例如， AS/SCS希望收到触发信息的 MTC 用户设备组的响应 （如立刻发送状态报告， 或一段时间后发送状态报告等）。 组触发信息是周期性发送， 上述广播周期由现有广播信息发送给目标 MTC用户 设备组。 步骤 S308, 收到组寻呼信息的 MTC用户设备接收组触发信息。 MTC用户设备在 相应的资源读取组触发信息， 并根据组触发信息的内容与 AS/SCS进行通信。 优选实施例一 本优选实施例描述的是 MTC-IWF通过 T4接口发送组触发信息，利用广播信息实 现触发一组 MTC用户设备的场景， 图 4是根据本发明优选实施例一的 MTC用户设备 的通信方法的交互流程图， 如图 4所示， 该方法包括如下步骤： 步骤 S402, MTC服务器（AS)设置组触发指示信息， 并发送到 MTC-IWF (通过 scs)。 本步骤中， AS位于 3GPP运营商网络之外， SCS位于 3GPP运营商网络之内或之 夕卜， MTC-IWF位于 3GPP网络之内。 MTC-IWF收到组触发信息后需要对其进行认证。 需要说明的是， SCS发送到 MTC-IWF的组触发信息中至少包括： MTC用户设备组标 识、 组触发信息对应的物理区域 （即组触发信息在哪些物理区域中发送）。 步骤 S404, MTC-IWF通过 T4接口向 SMSC发送组触发信息。 本歩骤中， MTC-IWF采用短信向短信服务中心 （Short Message- Service Center, 简称为 SMSC) 发送组触发信息。
MTC-IWF通过组触发信息中的 group ID向 HSS/HLR查询 MTC用户设备组的的 签约信息和所在的服务节点信息， 并将 MTC用户设备组的服务节点信息增加到该组 触发信息中。
MTC-IWF一般需要将组触发信息中的物理区域更新为以下对应的标识之一：跟踪 区域标识（Tracking Area Identifier,简称为 TAI)，路由区域标识（Router Area Identifier, 简称为 RAI)， 位置区域标识 （Location Area Identifier, 简称为 LAI)， 小区标识 （cell Identifier)。 步骤 S406, SMSC向 MME/SGSN/MSC发送组触发信息。 本歩骤中， SMSC 釆用短信向 MME/SGSN/MSC 发送组触发信息； MME/SGSN/MSC为目标 MTC用户设备组的服务节点， 即目标 MTC用户设备组在 MME/SGSN/MSC中注册。组触发信息为一条短信息， 该短信中的目标 MTC用户设备 标识为组标识 group IDo 步骤 S408a， MME/SGSN/MSC向 RAN节点发送组触发信息。 本步骤中， MME/SGSN MSC可以通过 HSS/HLR查询 group ID对应的小区， 并 将上述小区标识发送给相应的 RAN节点。 RAN节点为 eNB、 NodeB、 RNC；、 BSC；、 BTS。 步骤 S408b， MME/SGSN/MSC通过 RAN节点向 MTC用户设备组发送组寻呼信 息。 本步骤中， 组寻呼信息通过 RAN节点发送， 组寻呼信息用于向 MTC用户设备组 指示包含组触发信息的广播信息发生变化。 组寻呼信息至少包括 group ID, MTC用户设备根据组寻呼信息中的 group ID判断 该组寻呼信息是否为所需的组寻呼信息， 如果否则丢弃该组寻呼信息， 如果是则继续 执行其它步骤。组寻呼信息的组寻呼帧（Page Frame,简称为 PF)和寻呼时机 /子帧（Page Occasion, 简称为 PO) 的取值通过 group ID或 group IMSI计算得到。 步骤 S410, RAN节点向 MTC用户设备组广播包含组触发信息的广播信息。 本歩骤中， RAN节点通过广播信息向目标 MTC用户设备组所在的小区广播组触 发信息， 其中， 广播信息为专用的系统广播信息， 即针对 MTC用户设备组的广播信 息； 该广播信息由 RAN节点周期性发送， 上述周期通过现有广播信息发送给 MTC用 户设备。 该广播信息包含 MTC用户设备组触发的内容， 例如， AS/SCS希望收到组触 发信息的 MTC用户设备组的响应（如 MTC用户设备立刻发送状态报告， 或一段时间 后发送状态报告等）。 步骤 S412, 收到组寻呼信息的 MTC用户设备接收组触发信息。 本步骤中， MTC用户设备通过组触发信息中的组标识判断是否为需要的组触发信 息， 如果是， MTC用户设备读取组触发信息， 并根据该组触发信息的内容与 AS/SCS 进行通信； 如果否， 丢弃该组触发信息 优选实施例二 本优选实施例描述的是 MTC-IWF通过 T5接口发送组触发信息，利用广播信息实 现触发一组 MTC用户设备的场景， 图 5是根据本发明优选实施例二的 MTC用户设备 的通信方法的交互流程图， 如图 5所示， 该方法包括如下歩骤： 步骤 S502, MTC服务器（AS)设置组触发指示信息， 并发送到 MTC-IWF (通过
SCS)。 具体地， 该步骤与步骤 S402相同， 这里不再赘述。 步骤 S504, MTC-IWF通过 T5接口发送组触发信息到 MME/SGSN/MSC；。具体地， MTC-IWF根据组触发信息中的 group ID向 HSS/HLR査询目标 MTC用户设备组的服 务节点信息， 本优选实施例中， MTC用户设备组的服务节点是 MME/SGSN/MSC：。 需要说明的是， 组触发信息可以通过短信或专用控制信令向 MME/SGSN/MSC发 送， 此时， 所述组触发信息为一条短信或控制信令。 步骤 S506a， MME/SGSN/MSC向 RAN节点发送组触发信息。 步骤 S506b， MME/SGSN/MSC通过 RAN节点向 MTC用户设备组发送组寻呼信 息。 本优选实施例中， 步骤 S506a、 步骤 S506b分别与步骤 S408a、 步骤 S408b相同， 这里不再赘述。 步骤 S508， RAN节点向 MTC用户设备组广播包含组触发信息的广播信息。 本步 骤与歩骤 S410相同， 这里不再赘述。 步骤 S510，收到组寻呼信息的 MTC用户设备接收组触发信息。本步骤与步骤 S412 相同， 这里不再赘述。 优选实施例三 本优选实施例描述的是 AS/SCS通过用户面发送组触发信息使用用户面实现触发 一组 MTC用户设备的场景， 图 6是根据本发明优选实施例三的 MTC用户设备的通信 方法的交互流程图， 如图 6所示， 该方法包括如下步骤： 步骤 S602, MTC服务器（AS)设置组触发指示信息， 并发送到 PGW/GGSN (可 以直接发送或者通过 SCS发送）。 本步骤中， AS 可以与 PGW/GGSN通过 Gi/SGi接口直连， 或者通过 SCS 与
PGW/GGSN连接。 步骤 S604, PGW/GGSN发送组触发信息到 SGW， SGW向 MME/SGSN发送下行 数据通知 （Downlink Data Notification ， 简称为 DDN) 信息。 需要说明的是， SGW可以根据网络配置信息同时向 MME， SGSN发送 DDN， 或 者向 MME/SGSN之一发送 DDN。 步骤 S606, MME/SGSN通过 AN节点向 MTC用户设备组发送组寻呼信息。 本歩骤中， MME/SGSN 为收到 DDN信息的服务节点。 该组寻呼信息至少包括 group ID, 组寻呼信息的 PF/PO值通过 group ID或 group IMSI计算得到。 步骤 S608, 收到组寻呼信息的 MTC用户设备发起服务请求流程， 与 PGW/GGSN 建立公用数据网 （Public Data Network, 简称为 PDN) 连接。 其中， PDN连接为一条 共享连接， 即包含到多个 MTC用户设备的 PDN连接， 属于一个组的多个 MTC用户 设备共享一条 PDN连接 （相同的 IP地址、 端口）。 步骤 S610， SGW通过 PDN连接向 MTC用户设备发送组触发信息。 需要说明的是， 在附图的流程图示出的步骤可以在诸如一组计算机可执行指令的 计算机系统中执行， 并且， 虽然在流程图中示出了逻辑顺序， 但是在某些情况下， 可 以以不同于此处的顺序执行所示出或描述的步骤。 本发明实施例还提供了一种 MTC用户设备， 该 MTC用户设备可以用于实现上述
MTC用户设备的通信方法。 图 7是根据本发明实施例的 MTC用户设备的结构框图， 如图 7所示， 包括接收模块 72和通信模块 74。 下面对其结构进行详细描述。 接收模块 72， 设置为根据接收到的组寻呼信息接收来自 MTC服务器的携带有组 触发信息的广播信息， 其中， 组触发信息用于触发 MTC用户设备组中的 MTC用户设 备； 通信模块 74， 连接至接收模块 72， 设置为根据接收模块 72接收的组触发信息与 MTC服务器进行通信。 优选地，接收模块 72包括： 确定单元， 设置为确定自身接收到组寻呼信息，其中， 组寻呼信息用于指示广播信息的变化； 判断单元， 连接至确定单元， 设置为根据组寻 呼信息判断广播信息中携带的组触发信息是否为自身所需的组触发信息； 获取单元， 连接至判断单元， 设置为在判断单元的判断结果为是的情况下， 从广播信息中获取组 触发信息； 丢弃单元， 连接至判断单元， 设置为在判断单元的判断结果为否的情况下， 丢弃组触发信息。 优选地， 判断单元还包括： 第一判断子单元， 设置为根据组寻呼信息携带的组标 识判断组寻呼信息是否与 MTC用户设备组相对应； 第二判断子单元， 连接至第一判 断子单元， 设置为在第一判断子单元的判断结果为是的情况下， 根据组触发信息携带 的组标识判断该组触发信息是否为自身所需的组触发信息； 丢弃子单元， 连接至第一 判断子单元， 设置为在第一判断子单元的判断结果为否的情况下， 丢弃组寻呼信息。 本发明实施例还提供了一种 MTC用户设备的通信系统，该 MTC用户设备的通信 系统可以用于实现上述 MTC用户设备的通信方法。 图 8是根据本发明实施例的 MTC 用户设备的通信系统的结构框图， 如图 S所示， 包括 MTC服务器 81、 MTC互连功能 82、 PGW/GGSN 83. MTC用户设备组 84、 MTC用户设备组的服务节点 85和接入网 设备 86。 下面对其结构进行详细描述。
MTC服务器 81， 设置为生成组触发信息； MTC互连功能 82， 设置为通过 T4接 口或 T5接口或 CBS或 MBMS发送组触发信息； PGW/GGSN 83， 设置为通过用户面 发送组触发信息； MTC用户设备组的服务节点 85， 设置为向 MTC用户设备组发送组 寻呼信息， 以及向接入网设备 86发送组触发信息； MTC用户设备组 84中的 MTC用 户设备包括： 接收模块， 设置为根据接收到的组寻呼信息接收来自 MTC服务器 81的 携带有组触发信息的广播信息，其中，组触发信息用于触发 MTC用户设备组中的 MTC 用户设备； 通信模块， 连接至接收模块， 设置为根据接收模块接收的组触发信息与 MTC服务器 81进行通信。 需要说明的是， 装置实施例中描述的 MTC用户设备的通信系统对应于上述的方 法实施例， 其具体的实现过程在方法实施例中已经进行过详细说明， 在此不再赘述。 在一个优选实施例中， MTC用户设备的通信系统还可以包括如下模块或装置， 如 图 9所示，该系统包括: AS/SCS 91、 MTC-IWF 92、 PGW/GGSN和 SGW 93、 SMSC 94、 MME/SGSN/MSC 95. 无线接入网节点 96、 MTC用户设备 97。 其中， AS/SCS 91 (实现了上述 MTC服务器 81的功能）， 设置为生成 MTC组触 发信息， 其中组触发信息包含 MTC用户设备 group ID;
MTC-IWF 92 (实现了上述 MTC互连功能 82的功能）， 设置为选择触发路径， 将 接收到的 MTC用户设备组触发信息通过 T4/T5/用户面发送； PGW/GGSN禾!] SGW 93(实现了上述 PGW/GGSN 83的功能），设置为接收 AS/SCS 发送的组触发信息， 将收到的组触发信息通过用户面发送到 MTC用户设备 97 ;
SMSC 94， 设置为接收 MTC-IWF92发送的短信组触发信息， 将收到的组触发信 息发送到 MME/SGSN/MSC 95；
MME/SGSN/MSC 95 (实现了上述 MTC用户设备组的服务节点 85的功能）， 设置 为接收 MTC-IWF92或 SMSC 94发送的组触发信息， 并将组触发信息发送到无线接入 网节点 96， 还设置为通过无线接入网节点 96向 MTC用户设备 97发送组寻呼信息； 无线接入网节点 96 (实现了上述无线接入网节点 86的功能）， 设置为接收 93或 95 发送的组触发信息， 并通过广播信息或用户面数据向目标用户设备发送组触发信 息； 所述无线接入网节点 96包括以下至少一种： BSC；、 BTS、 RNC、 NodeB、 eNodeB。 MTC用户设备 97〔实现了上述 MTC用户设备组 84的功能）， 设置为接收组寻呼 信息和组触发信息， 还设置为根据组触发信息的内容与 AS/SCS 91进行通信。 MTC用 户设备为一组 MTC UE, 即两个或以上的 MTC用户设备， MC设备可以是 MTC用户 设备网关或单个 MTC用户设备。 综上所述， 根据本发明的上述实施例， 提供了一种机器类型通信用户设备的通信 方法及系统。 通过本发明， 利用广播信息向 MTC用户设备组广播组触发信息， 实现 同时触发一组中的多个 MTC用户设备， 优化组触发流程， 减少组触发过程占用的网 络资源。 显然， 本领域的技术人员应该明白， 上述的本发明的各模块或各步骤可以用通用 的计算装置来实现， 它们可以集中在单个的计算装置上， 或者分布在多个计算装置所 组成的网络上， 可选地， 它们可以用计算装置可执行的程序代码来实现， 从而， 可以 将它们存储在存储装置中由计算装置来执行， 或者将它们分别制作成各个集成电路模 块， 或者将它们中的多个模块或步骤制作成单个集成电路模块来实现。 这样， 本发明 不限制于任何特定的硬件和软件结合。 以上所述仅为本发明的优选实施例而已， 并不用于限制本发明， 对于本领域的技 术人员来说， 本发明可以有各种更改和变化。 凡在本发明的精神和原则之内， 所作的 任何修改、 等同替换、 改进等， 均应包含在本发明的保护范围之内。

Claims

权 利 要 求 书
1. 一种机器类型通信 MTC用户设备的通信方法， 包括：
MTC用户设备组中的一个或多个 MTC用户设备根据接收到的组寻呼信息 接收来自 MTC服务器的携带有组触发信息的广播信息， 其中， 所述组触发信 息用于触发所述 MTC用户设备组中的 MTC用户设备；
所述一个或多个 MTC用户设备根据所述组触发信息与所述 MTC服务器进 行通信。
2. 根据权利要求 1所述的方法， 其中， MTC用户设备组中的一个或多个 MTC用 户设备根据接收到的组寻呼信息接收来自 MTC服务器的携带有组触发信息的 广播信息包括：
所述一个或多个 MTC用户设备确定自身接收到组寻呼信息， 其中， 所述 组寻呼信息用于指示所述广播信息的变化；
所述一个或多个 MTC用户设备根据所述组寻呼信息判断所述广播信息中 携带的组触发信息是否为自身所需的组触发信息；
如果是， 所述一个或多个 MTC用户设备从所述广播信息中获取所述组触 发信息；
如果否， 所述一个或多个 MTC用户设备丢弃所述组触发信息。
3. 根据权利要求 2所述的方法， 其中， 所述一个或多个 MTC用户设备根据所述 组寻呼信息判断所述广播信息中携带的组触发信息是否为自身所需的组触发信 息包括：
所述一个或多个 MTC用户设备根据所述组寻呼信息携带的组标识判断所 述组寻呼信息是否与所述 MTC用户设备组相对应；
如果是， 所述一个或多个 MTC用户设备根据所述组触发信息携带的组标 识判断所述组触发信息是否为自身所需的组触发信息；
如果否， 所述一个或多个 MTC用户设备丢弃所述组寻呼信息。
4. 根据权利要求 1所述的方法， 其中， 在 MTC用户设备组中的一个或多个 MTC 用户设备根据接收到的组寻呼信息接收来自 MTC服务器的携带有组触发信息 的广播信息之前， 所述方法还包括： 所述 MTC服务器通过所述 MTC用户设备组的服务节点向接入网设备发送 所述组触发信息；
收到所述组触发信息的接入网设备向所述 MTC用户设备组所在的区域广 播所述组触发信息。
5. 根据权利要求 4所述的方法， 其中， 所述 MTC服务器通过所述 MTC用户设备 组的服务节点向接入网设备发送所述组触发信息包括：
MTC互连功能接收到所述 MTC服务器发送的所述组触发信息， 其中， 所 述组触发信息至少包括以下之一： MTC用户设备组标识、所述组触发信息对应 的物理区域；
所述 MTC互连功能将所述组触发信息中的物理区域更新为以下标识之一： 跟踪区标识、 路由区标识、 位置区域标识、 小区标识；
所述 MTC互连功能根据所述 MTC用户设备组标识查询所述 MTC用户设 备组的签约信息以及所述 MTC用户设备组的服务节点；
所述 MTC互连功能通过所述服务节点向所述接入网设备发送所述组触发 信息。
6. 根据权利要求 5所述的方法， 其中， 所述 MTC互连功能通过所述服务节点向 所述接入网设备发送所述组触发信息包括：
所述 MTC互连功能通过以下方式之一向所述服务节点发送所述组触发信 息： T4接口、 T5接口、 小区广播中心 CBC、 广播多播业务中心 BMSC;
所述服务节点向所述接入网设备发送所述组触发信息， 并通过所述接入网 设备向所述 MTC用户设备组发送组寻呼信息。
7. 根据权利要求 6所述的方法， 其中， 所述 MTC互连功能通过以下方式之一向 所述服务节点发送所述组触发信息： T4接口、 T5接口、 CBC、 BMSC包括： 所述 MTC互连功能通过 T4接口以短信的形式向所述服务节点发送所述组 触发信息；
所述 MTC互连功能通过 T5接口以短信或专用控制信令的形式向所述服务 节点发送所述组触发信息；
所述 MTC互连功能通过 CBC以小区广播业务 CBS的形式向所述服务节 点发送所述组触发信息； 所述 MTC互连功能通过 BMSC以多媒体广播多播业务 MBMS的形式向所 述服务节点发送所述组触发信息。
8. 根据权利要求 1所述的方法， 其中， 在 MTC用户设备组中的一个或多个 MTC 用户设备根据接收到的组寻呼信息接收来自 MTC服务器的携带有组触发信息 的广播信息之前， 所述方法还包括：
分组数据网网关 PGW/网关通用分组无线业务支持节点 GGSN接收到所述 MTC 服务器发送的所述组触发信息， 其中， 所述 MTC 服务器与所述 PGW/GGSN通过 Gi/SGi接口直连或者通过服务能力服务器 SCS连接；
所述 PGW/GGSN通过信令网关 SGW向所述 MTC用户设备组的服务节点 发送下行数据通知 DDN;
所述一个或多个 MTC用户设备接收到组寻呼信息， 并与所述 PGW/GGSN 建立公用数据网 PDN连接， 其中， 所述 MTC用户设备组中的 MTC用户设备 共享所述 PDN连接；
所述 SGW通过所述 PDN连接向所述 MTC用户设备组发送所述组触发信 息。
9. 根据权利要求 1至 8中任一项所述的方法， 其中， 所述广播信息可以通过以下 方式之一发送： 多播控制信道 MCCH信息、 CBS信息、 系统信息。
10. 根据权利要求 9所述的方法， 其中， 所述系统信息是为所述 MTC用户设备设 计的系统信息块 SIB, 只有所述 MTC用户设备监听并读取所述系统信息。
11. 根据权利要求 1至 8中任一项所述的方法， 其中， MTC用户设备组的服务节点 至少包括以下之一： 移动管理实体 MME、 服务通用分组无线业务支持节点 SGSN、 移动交换中心 MSC。
12. 根据权利要求 1至 S中任一项所述的方法， 其中， 接入网设备至少包括以下之 一： 演进的节点 BeNB、 NodeB、 无线网络控制器 R C、 基站控制器 BSC、 基 站 BTS。
13. 根据权利要求 1至 8中任一项所述的方法， 其中， 携带有所述组触发信息的所 述广播信息是周期性发送的。
14. 一种机器类型通信 MTC用户设备， 包括：
接收模块， 设置为根据接收到的组寻呼信息接收来自 MTC服务器的携带 有组触发信息的广播信息， 其中， 所述组触发信息用于触发 MTC用户设备组 中的 MTC用户设备；
通信模块， 设置为根据所述组触发信息与所述 MTC服务器进行通信。
15. 根据权利要求 14所述的 MTC用户设备， 其中， 所述接收模块包括：
确定单元， 设置为确定自身接收到组寻呼信息， 其中， 所述组寻呼信息用 于指示所述广播信息的变化；
判断单元， 设置为根据所述组寻呼信息判断所述广播信息中携带的组触发 信息是否为自身所需的组触发信息；
获取单元， 设置为在判断结果为是的情况下， 从所述广播信息中获取所述 组触发信息；
丢弃单元， 设置为在判断结果为否的情况下， 丢弃所述组触发信息。
16. 根据权利要求 15所述的 MTC用户设备， 其中， 所述判断单元包括：
第一判断子单元， 设置为根据所述组寻呼信息携带的组标识判断所述组寻 呼信息是否与所述 MTC用户设备组相对应；
第二判断子单元， 设置为在判断结果为是的情况下， 根据所述组触发信息 携带的组标识判断所述组触发信息是否为自身所需的组触发信息；
丢弃子单元， 设置为在判断结果为否的情况下， 丢弃所述组寻呼信息。
17. 一种机器类型通信 MTC用户设备的通信系统， 包括 MTC服务器、 MTC互连 功能、 分组数据网网关 PGW/网关通用分组无线业务支持节点 GGSN、 MTC用 户设备组、 所述 MTC用户设备组的服务节点、 接入网设备， 其中，
所述 MTC服务器， 设置为生成组触发信息；
所述 MTC互连功能， 设置为通过 T4接口或 T5接口或小区广播中心 CBC 或广播多播业务中心 BMSC发送所述组触发信息；
所述 PGW/GGSN, 设置为通过用户面发送所述组触发信息； 所述 MTC用户设备组的服务节点，设置为向所述 MTC用户设备组发送组 寻呼信息， 以及向所述接入网设备发送所述组触发信息； 所述 MTC用户设备组中的 MTC用户设备包括：
接收模块， 设置为根据接收到的组寻呼信息接收来自 MTC服务器的携带 有组触发信息的广播信息， 其中， 所述组触发信息用于触发所述 MTC用户设 备组中的 MTC用户设备；
通信模块， 设置为根据所述组触发信息与所述 MTC服务器进行通信。
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